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NBS Lightweight .223/5.56 Bolt Carrier Group – Nickel Boron
NBS AR-9 Billet Upper Receiver for 9mm / .45
NBS 6.5 Grendel, 16″ Black Nitride M4 Barrel, 1:8 Twist, Carbine Length Gas System Barrel
NBS .223/5.56/300BLK M16 Profile Left-Handed Bolt Carrier Group Black Nitride
AO Precision C158 SP/HPT/MPI 5.56 Bolt Carrier Group – Black Nitride
Rosco Manufacturing Purebred 16″ .223 Wylde Government 1:8 Twist Midlength Stainless Barrel
Dirty Bird Industries 9mm Bolt Carrier Group
Dirty Bird AR-15 Stripped Upper Receiver
NBS Premium Series 16″ .223 Wylde 1:8 Twist Black Nitride Mid-Length Barrel
NBS Lightweight .223/5.56 Bolt Carrier Group – Black Nitride
NBS AR-15 Mil-Spec Barrel Nut
NBS AR-15 Delta Ring Assembly
NBS 16″ 9mm SOCOM QPQ Nitride Barrel
Rubber City Armory Adjustable Gas Key
Anderson .223/5.56 M16 Bolt Carrier Group – Black Nitride
Superlative Arms .750 Adjustable Gas Block – Solid – Melonited
Strike Industries Extended Latch Charging Handle – Black
New Frontier Pistol Caliber Billet AR-9/45 Slick Side Upper with LRBHO
Anderson AR-15 Assembled Upper Receiver
NBS 7.5″ Slick Side Billet 5.56 Nitride Pistol M-LOK Upper Assembly
NBS 5″ 5.56 NATO 1:5 Micro Black Nitride Barrel
NBS 16″ 5.56 NATO Contour 1:7 Mid Length 416R Barrel – Stainless
NBS 16″ 5.56 NATO 1:7 Twist Mid-Length Parkerized Barrel
Dirty Bird Brand AR-15 Parts
